Board Thread:General Discussion/@comment-31398341-20170409101440/@comment-31398341-20170420150336

WRYYYYYYYYYYYYYYY wrote: Robepriority wrote: It can't wall overused offensive pokemon.

Even greninja has ice beam. It can be run a defensive set of EVs to tank a hit (252 Hp/128 Def/128 Sp.Def or 252 Hp/4 Def/252 Sp. Def) To tank hits specifically from mons that pose a threat to it.

252 SpA Life Orb Protean Greninja Ice Beam vs. 252 HP / 252+ SpD Meganium through Light Screen: 118-140 (32.4 - 38.4%) -- 2.9% chance to 3HKO after Leftovers recovery

Meganium can still set up after two leftovers + light screen. While it can be a mixed tank, I think it still has a place on (nonexistant) sunny day teams .3. But as a Reflect + Light Screen it is outclassed mainly by Sylveon. which has far better typing and far more special defense. Meganium usually does not have a chance to set up. 252 HP and SpDef EV spread as you mentioned is very specific to special attackers. It usually can set up one time and overwhelmed by decently powerful attackers. Lake guardians are also decent double screen users. All of them either has higher speed or defenses, for Azelf and Uxie respectively.